SOUTH AFRICAN NATIONAL ROADS AGENCY SOC LIMITED
Checklist for Nuclear Density TestingProject: Doc No:
Contract No: Rev No:
Date:
1 Operator "certified" to operate the instrument and acquainted with all the safety precautions.
2
3 All transport radiation labels are placed on the transport vehicle when transporting the gauge.
4 The gauge source is locked in the shielded or off position.
5
6 The shutter mechanism is thoroughly cleaned.
7 The battery is fully charged.
8 The gauge is locked in its shipment box when not in use.
9 The following documents are with the gauge:
a. Monthly standard counts log-book
b. Operational manual
c. Compliance certificate (12 months)
d. Leak test results (certified)
e. Authorisation to operate the nuclear gauge
f. Authority to possess a nuclear gauge issued by the Department of Health
10 The following must be carried out before the operation of any count:
a. Gauge is in the correct test mode.
b. All offsets have been disabled.
c. Correct depth measurement has been selected.
d.
e. Material’s MDD and OMC are entered into the gauge’s memory.
f. Area is cordoned off with appropriate signage.
g.
11
12
a. Hole is vertical, or the gauge will not seat properly causing inaccurate test results.
b. The pre-drilled hole is 50 mm deeper than the desired depth to be tested.
c. The drill rod does not vibrate when it is hammered into the test material.
d. The guide plate is seated level on the surface of the layer to be tested.
e. The source probe rests snugly against the hole wall before a count is taken.
13 The following checks are carried out before commencing with the count:
a. All offsets are disabled.
b. Correct standard density for the material has been entered.
c. Gauge is in the correct mode.
d. Correct depth of measurement has been selected.
e. Correct time for the duration of the count has been selected.
f. Testing is done as soon as possible after final compaction (± 24 hours).
g. No testing in rainy or wet conditions, or directly on saturated layers.
h. Surface of the layer to be tested is level, smooth and free from voids.
i. Shutter mechanism is thoroughly cleaned.
j.
k.
l. Only half the counts are received due to faulty detector tube, or only one is functioning.
m. Detector tubes out of alignment due to excessive bumping of the gauge.
n.
o.
p. Source probe or rod depth divisions out of alignment.
ACCEPTANCE/APPROVALClient's Rep Contractor's Rep
NameSignature
Date
Confirm/Reject (Y/N)
Confirm the log-book has been completed every time the gauge has been, and is, removed from its storage facility.
The emergency procedures in case of an accident, and the relevant emergency telephone numbers, are available.
Correct time duration of the count has been selected (4 minutes for standard count, 1 minute for field count).
Gauge is warmed-up for 20 minutes (or according to the manufactures instructions), before operation to allow the regulators and detectors to stabilise. Source rod should be in the “safe” position at all times during the warm-up period.
Gauge should be at least 10 m away from any other nuclear device, and at least 3 m away from other objects, to prevent external factors influencing the measurements.The following is ensured during pre-drilling of the hole to accommodate the source probe and during insertion of the source probe into the hole:
Handle of the source rod engages properly into the catch position for the different positions of measurements.Bottom of the gauge does not stand proud of the level surface of the test area due to excessive wear of the base of the gauge (rocking).
Voltage low, or voltage module is broken, leading to the recording of the incorrect quantity of counts detected by the detector tubes.Incorrect count ratio due to excessive source decay, or standard count determined in a cold state, i.e., gauge not sufficiently warmed-up.
SOUTH AFRICAN NATIONAL ROADS AGENCY SOC LIMITED
Checklist for Asphalt Paving (Page 1 of 3)Project: Doc No:Contract No: Rev No:
Date:1 Paver
a. Truck Pushing Rollers
i. Clean
ii. Free Running
b. Hopper
i. Are sides reasonably smooth
ii. Does side tilt mechanism work properly
iii. Are rubber skirts in good condition
iv. Do feed control gates work smoothly
v. Are feed conveyors in good condition
c. Screed Unit
i. Are pivots free running
ii. Are screed plates smooth and flat
iii. Is bevel on tamper bars to specification
iv. Are tamper bars straight
v. Is clearance between tamper bars and screed correct
Note: Clearance (mm) Specified Clearance (mm) 0.05
vi. Is protrusion of tamper bar below screed correct
Note: Protusion (mm) Specified Protusion (mm) 0.05
vii. Is gap between tamper bars and screed clean
viii. Are crown controls for screed working smoothly
ix. Is locking system for crown control adequate
x. Is screed inclination set correctly
Actual Specified
xi. Are augers in good condition and tight on shaft
xii. Are the centre auger flights reversed
xiii. Are augers set at correct height: Actual Specified
xiv. If telescope screed is fitted:
xv. If screed is not telescopic:
xvi. Are screed heater burners working properly
xvii. Does screed control at working platform work correctly
xviii. Attachments
Note pressure kPa ballast Specified
Confirm/ Reject (Y/N)
- Flights
- Bed (no holes)
- Chains, conditions and tension
Note: Turnbuckle gauge reading:
- Do parts move smoothly
- Do wings form a smooth continuation of main screed without steps
- Are spreader screws extensions in good condition
- Are tamper bar extensions to specification and is clearance between tamper and screed correct
- Do tamper bar extensions protrude the correct distance below the screed
- Are there sufficient extension boxes
- Are screed, tamper bars, spreader screws in good condition
- Does extension form a continuation of main screed unit without steps
- Are tamper bars and screed correctly set relative to each other
- Do extensions to spreader screws attach tightly to main section
- Are side cut-off plates free to move
- Is joint matcher securely attached to chassis
- Is joint matcher in good condition
- Is mounting for travelling straight edge securely attached to chassis
- Is travelling straight edge free to slide on its mounting
- Is travelling straight edge correct length
- Are shoes on straight edge free to move
- Is tensioning winch in good condition
- Is sensor unit working
- Are tyre pressure and ballast correct
- Are solid tyres on small wheels clean and intact
- Check for fuel, oil hydraulic leaks
- Is guide chain arm free to move in chassis
Checklist for Asphalt Paving (Page 2 of 3)2 Aggregates
a. Is there sufficient stockpile area
b. Is the material in each stockpile pile uniform
Stockpile (Size of aggregate) Uniform Yes/No Conformance to design grading
3 Hot Storage for Binder
a. Is capacity sufficient for the programmed rate of production
Capacity (t)
b. Are tanks fitted with automatic temperature recording systemsc.
d. Is heating thermostatically controlled
e. Is there a warning system for variation in temperatures
f. Is binder circulated in tank and between tank and mixer
g. Are supply pipes lagged
h. Is there a level indicator
i. Are sampling points to specification
4 Cold feed bins
a. Are methods of controlling rate of feed operating smoothly
b. Are these controls accurate
c. Are precautions available to prevent spill over
d. Is there an adequate warning system if rate of feed alters
e. Is there an efficient interlock between cold feed and binder feed
f. Are fine aggregate feeds susceptible to arching
g. Is there a method of detecting and compensating for variations of moisture in the aggregates
h. Has contractor calibrated rates against RPM of belt pulley
5 Mixing Plant
a. Is rated capacity sufficient for the programmed rate of laying
Rate Capacity t/h Required Capacity t/hb. Are the proposed heating fuel and burners compatible
c. Is the method of control of the fuel/air mixture adequate
d. Are burners clean and nozzles to specification
e. Are drum rollers correctly set and in good conditions
f. Are drum flights in good conditions
g. Are binder spray bar and nozzles clean and in accordance with specification
h. Can position of spray bar be altered so as to control filler in mix and can adjustments be easily made
i.
j.
k. Is the plant fitted with suitable filler feed to allow accurate control of the filler content
6 Emission Control
a. Type:
b. Is dust collector matched to capacity of mixer
c. Method used to return a portion of the recovered fines to the mix
d. Method used for the disposal of unwanted fines
e. Do emissions from the stack comply with Act 45 of 1965 (as amended)
7 Buffer Storage
a. Is this of adequate capacity
b. Is this properly lagged
c. Do discharge gates operate smoothly
8 Elevator between Mixer and Buffer Store
a. Are buckets in good condition
b. Are chains and cables in good conditions
9 Steel Wheel Rollers
a. Are edges of rollers in good condition
b. Is change of direction smooth (no backlash)
c. Is roller properly ballasted (Record mass and position)t Position
d. Do wheel spray bars give a uniform cover on wheels
e. Are wheel-cleaning mats in good condition
f. Are scrapers in good condition and set
g. Check for oil, fuel and hydraulic leaks
i. Do brakes work
j. Is reversing smooth
Estimated daily demand (t/day)
If a modified binder is used, are the blending facilities and methods appropriate to ensure a uniform product with the required properties
Method of determining temperatures of binder at plant: Is this adequate and are the results visible to the operatorTemperature controls of aggregate and final mix: Are these adequate and are the results available to the operator
......................................................... .........................................................
Mass
Checklist for Asphalt Paving (Page 3 of 3)10 Pneumatic Rollers
a. Are tyres in good condition
i.
ii. Are all tyre pressures uniform.
Note tyre pressures kPab. Are rollers properly ballasted
(Record mass and position)
Roller 1: Mass t Position
Roller 2: Mass t Position
e. Are spray bars working uniformly
f. Are cleaning pads in good condition
g. Check for fuel, oil and hydraulic leaks
11 Hand Tools, etc
a. Straight edge: Is it clean and straight
b. Rakes and shovels: Are they clean and in good condition
c. Are thermometers available: Number Size
12 Haulage Vehicles
a. Are the basins clean
b. Do tailgates open and close properly
c. Are load covers fitted
d. Are vehicles free from fuel, oil and hydraulic leaks
e. Does tipping gear work
f. Registration numbers of vehicles
Comments
ACCEPTANCE/APPROVAL
Client's Rep Contractor's RepNameSignature
Date
Is there a variable pressure system for tyre pressure. If so, is it working, and is pressure gauge working and visible to driver
SOUTH AFRICAN NATIONAL ROADS AGENCY SOC LIMITED
Checklist for Asphalt Visuals
Project: Doc No:
Contract No: Rev No:
Date:
Surface Condition
Segregated Areas
Fatty Areas
Contamination (oil or diesel spills)
Condition of JointsLongitudinal: "Cut-back" and tacked
Transverse: "Cut-back" and tacked
Comments
ACCEPTANCE/APPROVAL
Client's Rep Contractor's Rep
Name
Signature
Date
Confirm/ Reject (Y/N)
SOUTH AFRICAN NATIONAL ROADS AGENCY SOC LIMITED
Checklist for Stone Seals (Page 1 of 3)Project: Doc No:Contract No: Rev No:
Date:1 Pre-treatment done, waiting periods and QA complete
a. Crack sealing
b. Edge break repair
c. Surfacing patching
d. Base patching
e. Functional patching
f. Rut filling
g. Texture treatment
h. Fog spray
2 Road Surface
a. Road surface
b. Is surface to be sealed clean
c. Is edge line of spray properly demarcated
d. Vegetation at edges cleared
e. Surface clean: no dust, mud, droppings, oil, etc.
3 Spray lanes demarcated with fibre rope
a. Straight 15 m pinned
b. Curves 2-3 m pinned
c. Measured from centre line
d. Joint positions not under wheel tracks or yellow line (offset 200 mm)
e.
4 Traffic accommodation and safety
a. Road signs in place
b. Cones, delineators, barricades positions and spacing
c. Flagmen
i.
ii.
iii.
d. Stop-go setup and communications/standby
e. Safety & protective clothing
f. Dust control (deviations)
g. Standby traffic light system
h. Double traffic on new seal (due to half-width construction)
5 Weather limitations applicable to binder and seal to be applied
a. Past 24 hours minimum temperature check
b. Weather forecast: temperature, rain and wind
c. Look up
d. Air temperature
e. Surface temperature (at different positions)
f. Aggregate temperature
g. Wind
h. Base moisture/existing surface wet (glass plate test?)
6 Aggregate
a. Clean and uncontaminated
b. Pre-coating uniform
c. Pre-coating dry
7 Binder
a. Has correct binder type been delivered
b. Is there a manufacturers’ certificate
c. Are there any test results supplied
d. Date of dispatch of load DD/MM/YYYY
e. Storage period complies with specification
f. Binder temperature °C Complies?
Confirm/ Reject (Y/N)
Reinforced paper at transverse joints
Checklist for Stone Seals (Page 2 of 3)8 Distributor
a. Valid certificate Expiry date DD/MM/YYYY < 12 months old
b. Pump Serial No. Matches certificate
c. Spray Bar No. Matches certificate
d. Dipstick No. Matches certificate
e. Are their oil leaks
f. Are there binder leaks
g. Is spray bar height uniform and correct (checked as per SAPEM)
h. Are nozzles of uniform type
i. Are nozzles correctly aligned
j. Are fishplates in place at ends
k. Is reinforced paper available
l. Has tray test been carried out
m. Is variation within 5%
9 Chip Spreader
a. Spreader width m Correct?
b. Do gates move freely when hopper is loaded
c.
d. Are agitator prongs in good condition
e. Are planks available to allow wheels to travel on hot mix
f. Are 1 m² canvas sheets available
g. Is 15 or 20 kg spring balance available
h. Check for fuel and oil leaks. Is spreader free of leaks
i. Are rollers of distribution bins worn
j. Are conveyor belts in good condition
k. Are gates of the bins uniform and adjusted correctly
l. During “dry” run is chip application uniform
m. During “dry” run is chip application accurate
n. Is there a chip spreader on stand by
10 Steel Wheel Roller
a. Are edges of roller in good condition
b. Is change of direction smooth (no backlash)
c.
Roller 1: Mass t Position
Roller 2: Mass t Position
d. Do wheel spray bars give a uniform cover on wheels
e. Are wheel cleaning mats in good condition
f. Are scrapers in good condition and set
g. Check for oil, fuel and hydraulic leaks. Is roller free of leaks
h. Do brakes work
i. Is reversing smooth
11 Pneumatic Rollers
a. Are tyres in good condition
b. Is there a variable pressure system for tyre pressure
c. If so, is it working and is pressure gauge working and visible to driver
d. Are all tyre pressures uniform
Note tyre pressures kPa Ok?
e. Is roller properly ballasted (record mass and position)
Roller 1: Mass t Position
Roller 2: Mass t Position
12 Trucks and Loader
a. Are there sufficient trucks for production rate
b. Are they in good condition; no oil leaks, etc.
13 Brooms
a. Are the rotary brooms in good condition
b. If required, is the “Z” broom in good condition
c. Is there sufficient labour with hand brooms
Does charging hopper move easily across spreader when loaded and on an adverse camber
Is roller properly ballasted (record mass and position)
Checklist for Stone Seals (Page 2 of 3)Comments
ACCEPTANCE/APPROVAL
Client's Rep Contractor's Rep
NameSignature
Date
SOUTH AFRICAN NATIONAL ROADS AGENCY SOC LIMITED
Checklist for PrimesProject: Doc No:Contract No: Rev No:
Date:
Base preparation
Completed
According to specification
Cured
Within time limit for stabilized base
Granular base < 50% of OMC
Spray preparation
Cleaned
Dampened
String lines
Joint paper
No wet prime
Binder
- Correct type
- Spray temperature
- Properties
Aggregate
Misty or wet conditions
Rain threatening
After sunset
Binder distributor
Water sprinkler
Rotary broom
Other equipment
Application rateTrial confirmation
Effective width
After care
Traffic off
Dry before sealing
Blinded for traffic accommodation
Comments
ACCEPTANCE/APPROVAL
Client's Rep Contractor's Rep
NameSignature
Date
Confirm/ Reject (Y/N)
Materials: Sampling, testing and specifications
- Stored temperature
- Blinding for excess removal
- Blinding for traffic accommodation
- Treatment of wet areas before seal
- Aggregate properties
“No go” environmental conditions
Strong wind blowing that would cause an uneven applicationTemperature of the road surface dropped below 20 °C before priming (10 °C in case of MC-10 or emulsion)
Equipment condition checks
SOUTH AFRICAN NATIONAL ROADS AGENCY SOC LIMITED
Checklist for Crushed Stone BaseProject: Doc No:Contract No: Rev No:
Date:1 Before Start of Activities
a. Confirm material quality and properties with laboratory before placing on site
b. Confirm water quality to be used during mixing
c. Confirm correct grading as per specificationd.
e. Inspect dumped material on preparatory section for any deleterious materialf.
g. Check temperature and wind speed for current and forecast conditions
h. PPE equipment (masks, gloves, shoes protection wear) available
2 Processinga.
b.
3 Compaction
a. Check density as compaction increases
b. Monitor compaction process to avoid under or over compaction
c. Monitor compaction process to avoid under or over vibrating material
4 Slushing
a. Check slushing equipment for condition and effectiveness
- Rotary broom
- Smooth drum roller
- Water cart (spreading ability)
b. Monitor slushing sequence and process as described in Standard Specificationsc.
d. Inspect surface to check rolled smoothly and not rolled out of shapee.
f. Carry out density testing at 50 mm intervals and record
5 Curing and Finishing
a. Take levels on completed surface and evaluate against specification
b. Check density obtained against specificationc.
d. Approve or reject layer accordingly, as per statistical judgement plan
e. Monitor layer drying process (should be 50% below OMC at 100 mm depth)
f. Record moisture contents before applying prime
6 Trial Sectionsa.
b.
Comments
ACCEPTANCE/APPROVAL
Client's Rep Contractor's Rep
NameSignature
Date
Confirm/ Reject (Y/N)
Inspect underlying surface. To be in good condition and not damaged either mechanically or by rain
Inspect layer and evaluate effectiveness of pre-shaping, i.e., quantities vs layer thickness required (Refer to Standard Specifications for preparation of material)
Ensure and evaluate moisture content of mixed material (preferably 1 or 2% over OMC)Confirm correct compaction equipment on site (grid, smooth and 3-point roller/oscillating roller)
Inspect finished surface for tight fit closely knit mosaic pattern, free from excess fines
Sample final surface after slushing for Indicator tests (grading and PI) and AD-CS (Apparent Density)
Check grading against specified target grading and grading envelope, refer to Standard Specifications
The above steps should be followed prior to production processing as part of a trial sectionDuring production mixing, the same checking procedures as above should be applied
SOUTH AFRICAN NATIONAL ROADS AGENCY SOC LIMITED
Checklist for Chemical StabilizationProject: Doc No:Contract No: Rev No:
Date:1 Before start of activities
a.
b. Material should be damp
c. Make sure all oversize material is removed or crushed to maximum size required
d. Pre shaped material should be in a fairly smooth rideable condition
e. Check temperature and wind speed for current and forecast conditions
f. PPE equipment (masks, gloves, shoes protection wear) available
2
a. Confirm cement quality and type of cement specified
b. Count pockets against square meter vs percentage stabiliser required
(divided by 50 = pockets required)
c.
3
a. Collect and inspect weighbridge ticket from spreader supplier
b. Check pressure gauges on spreader tanks are at required setting
c.
d. Check hand scale for correctness and calibration
4 During stabilisation
a.
b.
c. Ensure laboratory is notified for taking UCS, MDD and Indicator samples
d.
e. No traffic allowed on freshly compacted surface
5 Compaction
a. Do nuclear tests to determine density (including calibration of testing equipment)
b. Sample material for laboratory testing before final compaction
6 Finishing and curing
a. Take levels on completed surface and evaluate against specification
b.
c.
d. Check laboratory obtained strengths for UCS and ITS
e.
f. Approve or reject layer accordingly
Comments
ACCEPTANCE/APPROVAL
Client's Rep Contractor's Rep
NameSignature
Date
Confirm/ Reject (Y/N)
Inspect layer and evaluate effectiveness of pre-shaping, i.e., quantities vs layer thickness required. (Refer to Standard Specifications for preparation of material)
Before spreading of stabilizer (pockets)
i.e., L x W x D x MDD x %stabiliser x compaction required = kg/m3
Count pockets per m2 after spacing at correct intervals
Before spreading of stabilizer (mechanical spreader)
Place square meter mats at pre-determined intervals to weigh the cement after spreading
Check speed of spreader during application by mechanical spreader, by weighing each mat against calculated weight for cement contentCheck type of compaction equipment and mixing equipment for suitability and effectiveness
Monitor specified mixing time against type of stabilising agent (see Standard Specifications)
Check curing method applied and ensure constant moist surface to avoid carbonation
Check density obtained from nuclear gauge against specification and specified statistical judgement plan
Check Indicator Test results obtained from laboratory against specification and specified statistical judgement plan
SOUTH AFRICAN NATIONAL ROADS AGENCY SOC LIMITED
Checklist for In Situ Recycling with BSM
Project: Doc No:Contract No: Rev No:
Date:1 Recycler
a. Is recycler model appropriate for depth to be worked (Manufacturers limits)
b. Is recycler in good condition
c. Is the drum fitted appropriate for recycling
d. Are all picks in good condition and present
2 Tankers
a. Does tanker have the correct stabilising agent
b. Are there sufficient water tankers for production rate
c. Do bitumen tankers contain the correct grade of bitumen/emulsion
d. Are they fitted with dipsticks
e. Temperature
f. Are supply pipes properly lagged
g. Are all pipes fully “bled”
3 Steel Wheel Rollers
a. Are edges of rollers in good condition
b. Is change of direction smooth (no backlash)
c. Are rollers properly ballasted
Mass t Position
d. Do rollers have variable amplitude/frequency settings
e. Settings used for trial:
Passes No. Amplitude
Passes No. Frequency
f. Are wheel cleaning mats in good condition
g. Are scrapers in good condition and set
h. Check for oil, fuel and hydraulic leaks
i. Do brakes work
j. Is reversing smooth
4 Pneumatic Rollers
a. Are tyres in good condition
b. Is there a variable pressure system for tyre pressure
c. If so, is it working and is pressure gauge working and visible to driver
d. Are all tyre pressures uniform
Note tyre pressures kPa
e. Is roller properly ballasted (record mass and position)
Mass t Position
5 Process
a. Is the number of cuts for the total width defined
b. Is the width of overlap for each longitudinal joint defined
c. Is the length of cut (i.e., when train should return for adjacent cut) defined
d. Is there sufficient volume of imported material for planned production
e. Is there sufficient bitumen/emulsion for planned production
f. Is there sufficient water for planned production
g.
h. RPM
i.
j. Is moisture content of recycled material as per spec %
k. Is application of cement in front of train as per spec
l. Is grading of milled material similar to “design material”
m. Is depth of cut on both sides of drum uniform as per specification
n. Is final product completed within the allowable time period hours
ACCEPTANCE/APPROVAL
Client's Rep Contractor's Rep
NameSignature
Date
Confirm/ Reject (Y/N)
Is binder at correct temperature °C
Is outer edge of 1st cut clearly demarcated
To ensure correct grading, is rotation speed of drum definedTo ensure correct grading, is forward speed of recycler defined
m per minute
kg/m2
SOUTH AFRICAN NATIONAL ROADS AGENCY SOC LIMITED
Checklist for In Situ Recycling with BSM-Foamed Bitumen
Project: Doc No:Contract No: Rev No:Machine ID: Date:1
a. Check the bitumen system heaters are operational
b. Check the temperature of the road surface (digital thermometer)
c. Check that the foam-water tank is full
d. Remove and clean the foam-water filter
e. Remove and clean the bitumen filter
f. Lift machine / lower drum / open chamber doors for visual inspection
Check: All foamed bitumen nozzles clear
All water injection nozzles clear
g. Check each expansion chamber for blockages using “pre-water” function
Switch # 1 2 3 4 5 6 7
Nozzle # 1 & 3 2 & 4 5 & 7 6 & 8 9 & 11 10 & 12 13 & 15
Note any blockages:
h. Obtain loading / weighbridge certificate for bitumen tanker
i. Calculate cut lengths / finalise cut plan (with the operator)
j. Reset the on-board computer, enter data and check
Density Cut depth
Foam water
Application width
2
a. Check cut guideline and position recycler on first cut
b. Check bitumen temperature in tanker (loading hatch)
c. Check bitumen tanker for leaks. Crack valve, check for cold plug
d. Check water tanker is full and free of leaks
e. Couple up bitumen tanker and bleed air from system
f. Check that the bitumen foams using test nozzle
g. Couple up water tanker and bleed air from system
h. Check all supply lines and feed pipes for leaks
i. Confirm cut plan / check computer settings and nozzle closure
j. Check solenoid lights controlling spraybars / nozzle closure
k. Close front and rear doors. Lower recycling drum to cut depth
l. Lift drum and measure temperature of material on cut face
m. Roller in place, Drivers ready. Level control team standing by
Comments
ACCEPTANCE/APPROVAL
Client's Rep Contractor's Rep
NameSignature
Date
Confirm/ Reject (Y/N)
Recycler (Start of shift)
Bitumen application rate
Setting up the Recycling Train (Each new cut / tanker load)
SOUTH AFRICAN NATIONAL ROADS AGENCY SOC LIMITED
Checklist for In Situ Recycling with BSM-Emulsion Bitumen
Project: Doc No:Contract No: Rev No:Machine ID: Date:1
a. Check the bitumen emulsion system has been flushed
b. Check the temperature of the road surface (digital thermometer)
c. Lift machine / lower drum / open chamber doors for visual inspection
Check: All foamed bitumen nozzles clear
All water injection nozzles clear
d. Obtain loading / weighbridge certificate for bitumen tanker
e. Calculate cut lengths / finalise cut plan (with the operator)
f. Reset the on-board computer, enter data and check
Density Cut depth
Application width
2
a. Check cut guideline and position recycler on first cut
b. Check emulsion temperature in tanker (loading hatch)
c. Check emulsion tanker for leaks. Crack valve, check flow
d. Check water tanker is full and free of leaks
e. Couple up emulsion tanker and bleed air from system
f. Couple up water tanker and bleed air from system
g. Check all supply lines and feed pipes for leaks
h. Confirm cut plan / check computer settings and nozzle closure
i. Check solenoid lights controlling spraybars / nozzle closure
j. Close front & rear doors. Lower recycling drum to cut depth
k. Lift drum and measure temperature of material on cut face
l. Roller in place, drivers ready. Level control team standing by
Comments
ACCEPTANCE/APPROVAL
Client's Rep Contractor's Rep
NameSignature
Date
Confirm/ Reject
(Y/N)Recycler (Start of shift)
Emulsion application rate (%)
Setting up the Recycling Train (Each new cut / tanker load)
SOUTH AFRICAN NATIONAL ROADS AGENCY SOC LIMITED
Checklist for In Plant Treatment with BSM-Foamed Bitumen
Project: Doc No:Contract No: Rev No:Machine ID: Date:1
a. Check the bitumen system heaters are operational
b. Check the temperature of the material stockpiles
c. Check that the water tank is full
d. Remove and clean the foam-water filter
e. Remove and clean the bitumen filter
f. Aggregate feed bins. Check for material packing / blockages
Setting
Setting
g. Check the active filler bin and auger feed system
h. Open pugmill hatch and visually inspect for blockages
Check: all foamed bitumen nozzles clear
all water injection nozzles clear
i. Check each expansion chamber for blockages using “pre-water” function
Nozzle # 1 2 3 4 5 6 7
j. Obtain loading / weighbridge certificate for bitumen tanker
k. Check delivery conveyor is clean and running free
l. Reset the computer, enter data and check
Material density
Active filler Application rate
Bitumen application rate Foam water
2
a. Check bitumen temperature in tanker (loading hatch)
b. Couple up bitumen tanker and bleed air from system
c. Check that the bitumen foams using test nozzle
d. Water supply. Open valves and bleed air from system
e. Check all supply lines and feed pipes for leaks
f. Check ancillary plant and equipment is ready for mixing
Comments
ACCEPTANCE/APPROVAL
Client's Rep Contractor's Rep
NameSignature
Date
Confirm/ Reject
(Y/N)Mixing Plant (Start of shift)
Bin # 1. Material:
Bin # 2. Material:
Note blockages:
Setting up the Plant for Mixing (Each new batch / tanker load)
SOUTH AFRICAN NATIONAL ROADS AGENCY SOC LIMITED
Checklist for Concrete Paving (Page 1 of 2)Project: Doc No:Contract No: Rev No:
Date:1 Aggregates
a. Do aggregate sizes conform to that approved in the design
b. Have stockpiles been constructed correctly
c. Are materials in stockpiles of uniform grading and quality
d. Is moisture content of fine aggregate stockpile consistent
2 Cement
a. Is the correct cement stored in silo
b. Are test certificates available
c. If cement extenders are used, is the method of blending approved
3 Admixtures
a. Does the admixture conform to the specifications
b. Is the admixture being stored correctly
c. If required, is the admixture being agitated prior to use
4 Batch Plant
a. Is the batch plant clean and in good working order
b. Are bins for storing aggregate separated adequately to avoid contamination
c.
d. Have the batch plant scales been checked and calibrated
Certificate of Calibration
e. Has the accuracy of the scales been checked under dynamic conditions
Weigh full batches on weigh bridge and compare to batch plant print out
f. Do dials or digital read out return to zero after discharge of each batch
g. Do mixing blades have less than 10% wear
h. Is water-metering system accurate
i. Is add mixture dispenser operating correctly and accurately
j.
k. Is mixing time adequate to ensure a homogenous mix
m.
5 Supporting Substrate Layer
a. Has the layer been wetted for a minimum of 1 hour before paving
b. Is the substrate surface clean of all debris and free water
c. Is there evidence of heaving in the layer
d. Has the layer been fully accepted according to specified criteria
6 Slipform Paving
a. Is paver in good condition with no oil leaks
b. Are power tracks clean
c. Are guide wires staked firmly in ground
d. Has position and level of guide wires been checked
e. Is track path clean, firm and level
i. Are sufficient canopies available for protection of paved concrete
7 Side Form Paving
a. Are paving machines in good condition with no oil leaks
b. Are side forms clean and in good repair
c. Are form faces perpendicular to the base
d. Are forms true to line and level
e. Are forms true in all directions ( < 3 mm in 3 m )
f. Are locks securely fastened
g. Are forms fixed securely to substrate
h.
i. Have forms been oiled immediately prior to concrete placement
j Are sufficient canopies available for protection of placed concrete
Confirm/ Reject (Y/N)
Have concrete slabs at base of bins been constructed according to the requirements, to avoid contamination
Does size of batch and speed of rotation comply with manufacturers specifications
Are bins of trucks clean and are correct protection measures in place during transport
Is packing placed under forms adequate, and is mortar (1:3 cement/sand) packing flush with inside face
Checklist for Concrete Paving (Page 2 of 2)8 Tie Bar Inserter
a. Are bars of correct diameter and length
b. Are inserters set at the correct distances from edge of pavement
c. Are the inserters set to the correct depth
d. Are there sufficient stocks available
9 Dowel Bar Inserter
a. Are the dowels of correct diameter and length
b. Are the dowels clean with sleeves properly fitted
c. Are the inserters set for the correct position and depth
d.
e.
10 Finishing, Texturing and Curing
a. Does the burlap drag conform to specification
b. Do the metal grooving tines conform to specifications
c. Are random spacings of tines correctly set
d. Is depth of texturing within specified tolerances
e. Are spray nozzles for curing compound clean
f.
g. Has the correct curing compound been supplied
h. Can the curing compound be continuously agitated during spraying
Comments
ACCEPTANCE/APPROVAL
Client's Rep Contractor's Rep
NameSignature
Date
Is there any excessive movement or lifting off the rails by the inserter during placementAre the inserted dowels, after compaction, within the allowable tolerances with regards to alignment- parallel to the finished surface
- to the centre line of the carriageway
- to each other
Are adequate protection measures available for spraying during windy conditions
SOUTH AFRICAN NATIONAL ROADS AGENCY SOC LIMITED
Checklist for Block PavingProject: Doc No:Contract No: Rev No:
Date:1 Formation to receive paving
a. Levels
b. Area (particularly width)
c. Soft spots
d. Root growth requiring removal
e. Smoothness
f. Compaction
g. Services needing protection
2 Kerbing
a. Excavation
b. Levels
c. Alignment
3 Bedding sand
a. Right type
b. Grading
c. Pre-compaction prevented
d. Protection: - Rain
- Strong winds
e. Thickness before compaction
4 Laying
a. Main axis of laying
b. Laying pattern
c. Infill blocks
d. Primary compaction
e. Joint sand: - Right type
- Grading
f. Pre-compaction levels and smoothness
g. Secondary compaction
h. Damaged blocks
i. Finished levels
j. Joint widths
l. Tidy up site
Comments
ACCEPTANCE/APPROVAL
Client's Rep Contractor's Rep
NameSignature
Date
Confirm/ Reject (Y/N)
SOUTH AFRICAN NATIONAL ROADS AGENCY SOC LIMITED
Checklist for Backfill to StructuresProject: Structure:Contract No: Element:
Inspection No:
Doc No: Drawing No.:
Rev No:
Date: Rev No:
Location:
Items to be checked
Check by
RemarksClient's Rep
Initial Date Initial Date
Approval of final level
Comments
ACCEPTANCE/APPROVAL
Client's Rep Contractor's Rep
NameSignature
Date
Quantity (m3):
Foreman/Site Engineer
Structure completion / approval received
Approval of backfill material and source
Compaction equipment agreed uponHave maximum layer thicknesses been demarcated on wall of structure? Backfill in layer thicknesses prescribed
Density test rest from lab acceptable (Attach result)
SOUTH AFRICAN NATIONAL ROADS AGENCY SOC LIMITED
Checklist for GabionsProject: Section:Contract No: CH Start:
CH Finish:
Doc No: Length
Rev No:
Date: Drawing No.:
Revision:
Items to be checked
Check by
RemarksContractor Client's Rep
Initial Date Initial Date Initial Date
Gabions: Material and Size – Specification
Setting out – Alignment/Position
Setting out – Level
Excavations
Gabions Bedding
Mesh size: 80 mm x 100 mm
Minimum wire diameter: 2.7 mm
Stone/Rock size: ALD = 125 mm
Maximum stone size: 150 x 200 x 250 mm
Vertical facing plumb and straight
Top level checked
Backfill/Soilcrete
Suitable for the next level basket
Comments
ACCEPTANCE/APPROVAL
Sub-Contractor Rep Contractor's Rep Client's Rep
NameSignature
Date
Inspection Request No.:
Foreman/ Contractor
Correct Drawing Revision or as per RE’s instruction
Mattresses, Standard size: L=6 m; W=2 m; Depth=0.2 m; 0.3 m or 0.5 mBoxes, Standard size: L=1 m, 2 m, 3 m or 4 m; W=1 m; Depth=0.3 m, 0.5 m or 1 mFilter Fabric type. Filter fabric to have minimum 300 mm overlap and to be fastened at joints
Internal horizontal bracing wires at 330 mm vertical centers wrapped around 2 mesh wires at the front and back (4 to every 1 cube of fill)Securely wire/lace along all the edges (top, bottom, sides and at diaphragm points) and to all adjacent boxes/mattresses before filling with rocksInternal vertical bracing wire @ 330 mm where water falls onto boxes and at mattresses (high water velocity)
End of lacing wire turned to the inside of the box/mattress
SOUTH AFRICAN NATIONAL ROADS AGENCY SOC LIMITED
Checklist for Earthworks CutProject: Section:Contract No: Inspection Request No:
Doc No: Chainage
Rev No: Drawing No.:
Date: Slopes
Items to be checked
Check by
RemarksForeman/Site Engineer Client's Rep
Initial Date Initial Date
Clear and grub approved
Are undercuts identified
Formation level
Comments
ACCEPTANCE/APPROVAL
Client's Rep Contractor's Rep
NameSignature
Date
Latest Drawing revision usedReceived approval of disposing materialsEquipment inspection and approvalIs protection of services in placeSurvey-natural ground level recorded
Stripping of topsoil approved
Survey: Setting out of profilesEarthwork cut: Constantly checking cut slops
Temporary drainage: Maintenance satisfactorySurvey payment line measured and recorded
SOUTH AFRICAN NATIONAL ROADS AGENCY SOC LIMITED
Checklist for Drainage PipesProject: Section:Contract No: Diameter:
Chainage:
Doc No: Orientation:
Rev No:
Date: Drawing No.:
Revision:
Items to be checked
Check by
RemarksContractor Client's Rep
Initial Date Initial Date Initial Date
Latest drawing revision used
Piping material: Size and state
Setting out work: Alignment and level
Permission to excavate received
Excavate: Correct depth and width
Compaction of excavation floors
Bedding material and thickness
Check that pipes are free from damage
Check seating of joints
Check joint seal, bidum and wrapping
Check wrapping overlaps
Check orientation and line
Check invert levels
Comments
ACCEPTANCE/APPROVAL
Sub-Contractor Rep Contractor's Rep Client's Rep
NameSignature
Date
Inspection Request No.:
Foreman/ Contractor
Density test done on excavation floors (attach lab result)
Check connection into inlet and outlet structuresRepair to lifting holes and release to backfill
SOUTH AFRICAN NATIONAL ROADS AGENCY SOC LIMITED
Checklist for Concrete Side DrainsProject: Section:Contract No: Chainage:
Doc No:
Rev No: Drawing No.:
Date: Revision:
Items to be checked
Check by
RemarksContractor Client's Rep
Initial Date Initial Date Initial Date
Position as per drawing
Levels checked
Contraction joints @ 2.5 m c/c
Expansion joints @ 30 m c/c
Excavation compacted to 93% MDD
Reinforcing: Welded steel fabric Ref 311
Saw cutting in straight line
Back shutter in straight line
Concrete: Class 30/19
Concrete: Surface finish U2
Comments
ACCEPTANCE/APPROVAL
Sub-Contractor Rep Contractor's Rep Client's Rep
NameSignature
Date
Inspection Request No.:
Foreman/ Contractor
Contact area @ joints painted with bitumen
Saw cutting of pavement edge: Cut to full depth of concrete: ___________ mm
End shutters (traverse shutters) flush with surfacing and back shutter
0.15 mm Polyethylene sheeting or inverted bitumen emulsion to trimmed excavation surfaces
Approval obtained from Engineer to cast concrete
Expansion joints sealed with specified product
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